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Matchup

Aurora
Aurora
27%
73%

vs

50.0%
Sejuani
Sejuani
45%
55%
Heavy CCVery tankyStrong engage

Build vs Sejuani

Build adapted to this matchup

Starting items

Doran's Ring
Health Potion
x2

Core build

Hextech Rocketbelt
1Mage tank
Mejai's Soulstealer
2
Shadowflame
3vs Tank

Standard

Sorcerer's Shoes
4Magic pen
Liandry's Torment
5Mage tank

Summoner spells

41456%
41244%

Anti AD

Plated Steelcaps
4vs AD
Zhonya's Hourglass
5vs AD

Anti AP

Mercury's Treads
4vs CC
Banshee's Veil
5vs AP

Anti Tank

Stormsurge
5vs Tank
Void Staff
vs Tank

DPS

Liandry's Torment
Mage tank
Luden's Echo
Mage
Rabadon's Deathcap
Mage
Blackfire Torch
Mage
100.0% WR2 games
DominationDomination
ElectrocuteElectrocute
Taste of BloodTaste of Blood
Grisly MementosGrisly Mementos
Ultimate HunterUltimate Hunter
SorcerySorcery
TranscendenceTranscendence
Manaflow BandManaflow Band
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
AuroraAurora
SejuaniSejuani
Aggressive
Careful
Careful

Sejuani's abilities

Passive, spells and ultimate

Fury of the North (P)

After being out of combat, Sejuani gains Frost Armor which grants Armor and Magic Resist and immunity to slows. Frost Armor persists for a short time after Sejuani takes damage. Sejuani can damage a stunned enemy to shatter it, dealing massive magic damage.

Cooldowns

Cooldowns by spell rank

LevelQWER
318s9s1.5s–
615s9s1.5s2m
912s8s1.5s2m
1112s7s1.5s1m45
1612s5s1.5s1m30
1812s5s1.5s1m30

Playing against Sejuani

How to counter and exploit weaknesses

1

Sejuani needs 4 frost stacks to stun — don't stay in range of her extended autos.

2

Her Q is a slow and predictable dash — sidestep or Flash the knockup.

3

She's weak in 1v1 but excels in teamfights — invade her early in the jungle when she's vulnerable.

4

Tenacity reduces the duration of her many CCs — buy Tenacity if you're frontline.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026